A Rice Variety (BRRI dhan29) Yield Performance as Influenced by Foliar Application of Salicylic Acid in Bangladesh

Abstract

Objective of this study was to examine and evaluate the role of different rates of salicylic acid (SA) as foliar spray on growth and yield performance of BRRI dhan29. The experiment was conducted at Sher-e-Bangla Agricultural University, Bangladesh from November, 2016 to May, 2017 following a randomized complete block design with five rates of SA in six replications. The results showed that the lower rate of SA (upto 0.75 mM) has a positive effect on rice biomass production including effective tiller per hill, filled grain per panicle, grain yield and straw yield. The highest dry matter production at both maximum tillering and panicle initiation stages was found at SA spray rate of 0.5 mM. The highest number of effective tillers per hill (14.7) as well as the highest filled grain (120.4) and grain yield (8.1 t/ha) were found at SA rate of 0.75 mM. However, the maximum biomass production was obtained at SA rate of 0.25 mM. The minimum grain yield (7.0 t/ha) was observed in the control treatment.

Assimilate Partitioning and Photosynthetic Parameters of Rice (Oryza sativa L.) in Response to Salicylic Acid Application

“…Although water sprayed plots showed improvement in DMA by panicle at anthesis stage and by chaff at physiological maturity but differences in DMA by other plant parts could not reach the level of significance amongst these two treatments (Table 2). Our results are supported by the observations recorded by Parveen et al, (2020) and Sha et al, (2019).…”

“…Saranraj (2014) also reported an increase in grain yield following SA application. Similar results were obtained by Jatana et al, (2020) and Parveen et al, (2020). Means in the same column followed by different letters are significantly different at p<0.05.…”